Tracker Series™ Piston Kit — Bore 3.937 in, Stroke 4.375 in, Compression 10.5:1

WISECO Tracker Series™ Piston Kit — Bore 3.937 in, Stroke 4.375 in, Compression 10.5:1 – 07-11 Touring, 07-12 Softail, 07-12 Dyna

WISECO
0903-1594
K0211PS
High-strength piston kit with precision-fit rings, force-fed pin oiling, pressure-seal groove and low-friction skirt coating. Packaged with two pistons, rings, pins and circlips; made in the USA.
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A robust piston kit engineered for aggressive engines. 🔧🔥

  • High-strength piston crown with generous valve pockets for big valves and cams.
  • Precision-fit rings selected for each application for ultimate sealing.
  • Force-fed pin oiling provides enhanced lubrication of the piston pin.
  • Pressure-seal groove reduces ring lifting and power loss.
  • Advanced low-friction skirt coating reduces friction, quiets operation, and improves scuff resistance.
  • Value packaged with two pistons, rings, piston pins and circlips; pistons made in the USA. 🇺🇸
: 0903-1594
In Stock

Data sheet

Brand
WISECO
Bore - Oversize
Standard
Bore Size
3,937"
Compression Ratio
10.5:1
Harley Family
Dyna
Softail
Touring

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Road King Touring 2007
Harley Davidson Road King Touring 2008
Harley Davidson Road King Touring 2009
Harley Davidson Road King Touring 2010
Harley Davidson Road King Touring 2011
Harley Davidson Road King Touring 2008
Harley Davidson Road King Touring 2009
Harley Davidson Road King Touring 2010
Harley Davidson Road King Touring 2011
Harley Davidson Road King Classic Touring 2007
Harley Davidson Road King Classic Touring 2008
Harley Davidson Road King Classic Touring 2009
Harley Davidson Road King Classic Touring 2010
Harley Davidson Road King Classic Touring 2008
Harley Davidson Road King Classic Touring 2009
Harley Davidson Road King Classic Touring 2010
Harley Davidson Road King Classic Touring 2011
Harley Davidson Road King Custom Touring 2007
Harley Davidson Electra Glide Touring 2007
Harley Davidson Electra Glide Touring 2008
Harley Davidson Electra Glide Touring 2009
Harley Davidson Electra Glide Touring 2010
Harley Davidson Electra Glide Touring 2008
Harley Davidson Electra Glide Touring 2009
Harley Davidson Electra Glide Touring 2010
Harley Davidson Electra Glide Classic Touring 2007
Harley Davidson Electra Glide Classic Touring 2008
Harley Davidson Electra Glide Classic Touring 2009
Harley Davidson Electra Glide Classic Touring 2010
Harley Davidson Electra Glide Classic Touring 2011
Harley Davidson Electra Glide Classic Touring 2009
Harley Davidson Electra Glide Classic Touring 2010
Harley Davidson Electra Glide Classic Touring 2011
Harley Davidson Electra Glide Ultra Classic Touring 2007
Harley Davidson Electra Glide Ultra Classic Touring 2009
Harley Davidson Electra Glide Ultra Classic Touring 2010
Harley Davidson Electra Glide Ultra Classic Touring 2011
Harley Davidson Electra Glide Ultra Classic Touring 2008
Harley Davidson Electra Glide Ultra Classic Touring 2009
Harley Davidson Electra Glide Ultra Classic Touring 2010
Harley Davidson Electra Glide Ultra Classic Touring 2011
Harley Davidson Electra Glide Ultra Limited Touring 2010
Harley Davidson Electra Glide Ultra Limited Touring 2011
Harley Davidson Street Glide Touring 2007
Harley Davidson Street Glide Touring 2008
Harley Davidson Street Glide Touring 2009
Harley Davidson Street Glide Touring 2010
Harley Davidson Street Glide Touring 2011
Harley Davidson Street Glide Touring 2008
Harley Davidson Street Glide Touring 2009
Harley Davidson Street Glide Touring 2010
Harley Davidson Street Glide Touring 2011
Harley Davidson Heritage Softail Classic Softail 2007
Harley Davidson Heritage Softail Classic Softail 2008
Harley Davidson Heritage Softail Classic Softail 2009
Harley Davidson Heritage Softail Classic Softail 2010
Harley Davidson Heritage Softail Classic Softail 2011
Harley Davidson Heritage Softail Classic Softail 2011
Harley Davidson Fat Boy Softail 2007
Harley Davidson Fat Boy Softail 2008
Harley Davidson Fat Boy Softail 2009
Harley Davidson Fat Boy Softail 2010
Harley Davidson Fat Boy Softail 2011
Harley Davidson Fat Boy Softail 2011
Harley Davidson Fat Boy Special Softail 2010
Harley Davidson Fat Boy Lo Softail 2011
Harley Davidson Fat Boy Special Softail 2011
Harley Davidson Softail Deluxe Softail 2007
Harley Davidson Softail Deluxe Softail 2008
Harley Davidson Softail Deluxe Softail 2009
Harley Davidson Softail Deluxe Softail 2010
Harley Davidson Softail Deluxe Softail 2011
Harley Davidson Softail Deluxe Softail 2011
Harley Davidson Cross Bones Softail 2008
Harley Davidson Cross Bones Softail 2009
Harley Davidson Cross Bones Softail 2010
Harley Davidson Cross Bones Softail 2011
Harley Davidson Softail Springer Classic Softail 2007
Harley Davidson Road Glide Touring 2007
Harley Davidson Road Glide Touring 2008
Harley Davidson Road Glide Touring 2009
Harley Davidson Road Glide Touring 2010
Harley Davidson Road Glide Touring 2009
Harley Davidson Road Glide Touring 2010
Harley Davidson Road Glide Ultra Touring 2011
Harley Davidson Road Glide Custom Touring 2010
Harley Davidson Road Glide Custom Touring 2011
Harley Davidson Road Glide Custom Touring 2010
Harley Davidson Road Glide Custom Touring 2011
Harley Davidson Rocker Softail 2008
Harley Davidson Rocker Softail 2009
Harley Davidson Rocker C Softail 2008
Harley Davidson Rocker C Softail 2009
Harley Davidson Rocker C Softail 2010
Harley Davidson Rocker C Softail 2011
Harley Davidson Rocker C Softail 2011
Harley Davidson Dyna Super Glide Dyna 2007
Harley Davidson Dyna Super Glide Dyna 2008
Harley Davidson Dyna Super Glide Dyna 2009
Harley Davidson Dyna Super Glide Dyna 2010
Harley Davidson Dyna Street Bob Dyna 2007
Harley Davidson Dyna Street Bob Dyna 2008
Harley Davidson Dyna Street Bob Dyna 2009
Harley Davidson Dyna Street Bob Dyna 2010
Harley Davidson Dyna Street Bob Dyna 2011
Harley Davidson Dyna Street Bob Dyna 2012
Harley Davidson Dyna Street Bob Dyna 2012
Harley Davidson Dyna Super Glide Custom Dyna 2007
Harley Davidson Dyna Super Glide Custom Dyna 2008
Harley Davidson Dyna Super Glide Custom Dyna 2009
Harley Davidson Dyna Super Glide Custom Dyna 2010
Harley Davidson Dyna Super Glide Custom Dyna 2011
Harley Davidson Dyna Super Glide Custom Dyna 2012
Harley Davidson Dyna Super Glide Custom Dyna 2012
Harley Davidson Dyna Fat Bob Dyna 2008
Harley Davidson Dyna Fat Bob Dyna 2009
Harley Davidson Dyna Fat Bob Dyna 2010
Harley Davidson Dyna Fat Bob Dyna 2011
Harley Davidson Dyna Fat Bob Dyna 2012
Harley Davidson Dyna Low Rider Dyna 2007
Harley Davidson Dyna Low Rider Dyna 2008
Harley Davidson Dyna Low Rider Dyna 2009
Harley Davidson Dyna Wide Glide Dyna 2007
Harley Davidson Dyna Wide Glide 105th Anniversary Dyna 2008
Harley Davidson Dyna Wide Glide Dyna 2010
Harley Davidson Dyna Wide Glide Dyna 2011
Harley Davidson Dyna Wide Glide Dyna 2012
Harley Davidson Blackline Softail 2011
Harley Davidson Blackline Softail 2011
Harley Davidson Blackline Softail 2012
Harley Davidson Softail Softail 2007
Harley Davidson Softail Standard Softail 2008
Harley Davidson Softail Standard Softail 2009
Harley Davidson Softail Standard Softail 2010
Harley Davidson Softail Standard Softail 2011
Harley Davidson Softail Night Train Softail 2007
Harley Davidson Softail Night Train Softail 2008
Harley Davidson Softail Night Train Softail 2009
Harley Davidson Softail Custom Softail 2007
Harley Davidson Softail Custom Softail 2008
Harley Davidson Softail Custom Softail 2009
Harley Davidson Softail Custom Softail 2010
Harley Davidson Softail Deuce Softail 2007